App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 651 · 40 questions

Developer's tip (Design for everyone): Our rule: text is at least 16 px; every icon has a text label for screen readers. Add captions to videos; never use colour as the only clue. Big touch targets and strong contrast help everyone.

1. 1.♿ A screen has 7 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
2. 2.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) fast typists (d) colour-blind users
3. 3.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
4. 4.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
5. 5.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
6. 6.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
7. 7.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
8. 8.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
9. 9.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) sudden loud sounds (d) colour as the only clue
10. 10.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
11. 11.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) captions on videos (d) big touch targets
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Hint: 11 px
    Title: 24 px (a) Title (b) Caption (c) Hint
13. 13.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
14. 14.🔍 Which is the odd one out? (a) tiny tap areas (b) text that can grow (c) colour as the only clue (d) sudden loud sounds
15. 15.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
16. 16.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
17. 17.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Footer: 28 px
    Title: 23 px (a) Hint (b) Footer (c) Title
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 27 px
    Caption: 19 px
    Title: 14 px (a) Hint (b) Caption (c) Title
20. 20.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
21. 21.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) colour as the only clue (d) labels on every icon
22. 22.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) icons with no labels (d) tiny tap areas
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Body text: 15 px
    Hint: 18 px
    Footer: 13 px
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Title: 14 px
    Footer: 13 px
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 16 px
    Body text: 11 px
    Hint: 13 px
    Footer: 23 px
    Label: 15 px
27. 27.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) strong colour contrast (d) icons with no labels
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 21 px
    Menu: 19 px
    Body text: 18 px
    Caption: 9 px (a) Caption (b) Footer (c) Body text (d) Menu
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 12 px
    Title: 28 px
    Caption: 16 px (a) Title (b) Footer (c) Caption
30. 30.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
32. 32.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
33. 33.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) icons with no labels (d) labels on every icon
34. 34.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) text that can grow (d) strong colour contrast
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Title: 23 px
    Label: 13 px
    Body text: 21 px (a) Label (b) Hint (c) Title (d) Body text
36. 36.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) strong colour contrast (d) tiny tap areas
37. 37.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Caption: 19 px
    Menu: 22 px
    Body text: 24 px
    Title: 12 px
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 25 px
    Label: 27 px
    Caption: 24 px
    Body text: 18 px
    Hint: 9 px (a) Title (b) Caption (c) Hint (d) Label
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Title: 20 px
    Caption: 19 px

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